21950940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:523

約数の個数: 96

約数和(自身を含む): 68060160

約数和(自身を除く): 46109220

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 79, 110, 132, 158, 165, 220, 237, 316, 330, 395, 421, 474, 660, 790, 842, 869, 948, 1185, 1263, 1580, 1684, 1738, 2105, 2370, 2526, 2607, 3476, 4210, 4345, 4631, 4740, 5052, 5214, 6315, 8420, 8690, 9262, 10428, 12630, 13035, 13893, 17380, 18524, 23155, 25260, 26070, 27786, 33259, 46310, 52140, 55572, 66518, 69465, 92620, 99777, 133036, 138930, 166295, 199554, 277860, 332590, 365849, 399108, 498885, 665180, 731698, 997770, 1097547, 1463396, 1829245, 1995540, 2195094, 3658490, 4390188, 5487735, 7316980, 10975470, 21950940]

約数ペア:

[(1, 21950940), (2, 10975470), (3, 7316980), (4, 5487735), (5, 4390188), (6, 3658490), (10, 2195094), (11, 1995540), (12, 1829245), (15, 1463396), (20, 1097547), (22, 997770), (30, 731698), (33, 665180), (44, 498885), (55, 399108), (60, 365849), (66, 332590), (79, 277860), (110, 199554), (132, 166295), (158, 138930), (165, 133036), (220, 99777), (237, 92620), (316, 69465), (330, 66518), (395, 55572), (421, 52140), (474, 46310), (660, 33259), (790, 27786), (842, 26070), (869, 25260), (948, 23155), (1185, 18524), (1263, 17380), (1580, 13893), (1684, 13035), (1738, 12630), (2105, 10428), (2370, 9262), (2526, 8690), (2607, 8420), (3476, 6315), (4210, 5214), (4345, 5052), (4631, 4740)]